The symptoms of paroxysmal pain in the abdomen about 2 days before menstruation in women are called primary dysmenorrhea and are related to increased uterine tension and spasmodic contractions. If the menstruation is delayed for not more than 7 days, most of them are normal; if it does not enter the menstrual period for more than 7 days, it may be pregnancy for women who have sex, and it may also be endocrine disorder caused by excessive weight loss, long-term staying up late, etc., resulting in delayed menstruation or even amenorrhea. 1. Pregnancy: When pregnancy occurs in patients, it is usually manifested as delayed menstruation for 10 days or more, because the embryo is in the uterus to bed and develop, at this time The endometrium is in a thickened state and will no longer shed, so physiological amenorrhea will occur during pregnancy, which does not need to be treated at this time, and normal fetal nurturing can be done. 2. PMS: It may appear about 1 week before the patient’s period, and is most serious 2-3 days before the period, and some patients may continue until 3-4 days before the period ends, mainly manifesting as abdominal pain, nausea, inattention, anxiety, nervousness, etc. Symptoms. If PMS is caused by stressful life and mental tension and anxiety, psychological care can be carried out to ease the mood, and treatment can be carried out by playing music, talking about the patient’s favorite movies and other methods to promote the patient’s mood, and if it is caused by the imbalance of ovarian hormone levels, corresponding treatment can be carried out according to the cause of the imbalance, and corresponding medication can also be chosen according to the patient’s condition, such as levonorgestrel. 3. Endocrine disorder: due to dieting and weight loss, malnutrition, excessive exercise, staying up late, stress, emotional excitement and other factors lead to endocrine disorder in patients, which affects the ovarian secretion function and abnormal levels of estrogen and progesterone, which in turn affects the length of periods and the amount of menstrual blood. In severe cases, patients may experience temporary amenorrhea, and thus may experience no menstruation even though the pain in the abdomen disappears. The main way to regulate endocrine secretion is through diet and exercise. We should develop good eating habits, eat more fresh fruits and vegetables, high-protein foods, drink more water, participate in various sports and exercises, avoid staying up late, avoid overworking, and keep our spirits happy, and if necessary, we can also follow medical advice to regulate estrogen supplementation.